[piahoo]

sorry for stupid question, does this software support all the EOS M series? M50, M5, M6, M100?

[0-_-0]

The list of supported cameras is right on the front page.

The list of cameras supported by CHDK is on the front page here: http://chdk.wikia.com/wiki/CHDK

To summarize, ML supports M and M2, CHDK supports M3 and M10. There was some progress on the rest.